I just bought an Opteron 165 with a DFI lanparty Ut Ultra-D, memory are 2G Buffalo DDR400, i installed a 7900GT all with stock cooling, With Win XP SP2 in an HD maxtor 160G (SATA). I have a very slow start ... until apears the DESKTOP... but then the computer respondes very well. I installed a 460W power supply. What can it be?

You could get a decent UPS (uninterruptable power supply (battery backup)) and just leave your PC turned on. There are lots of opinions regarding leaving it on or turn it off. I've 3 PCs in my household all on UPSs and unless the weather threatens severe thunderstorms, I just leave them all running, which they were made for anyway.

Windows rechecks all hardware on bootup and then loads all kinds of crap into memory (sorry but I use Linux though both my kids are on XP). It takes time for all this to happen. I know of no way to speed up the boot process so long as you have quick memory test & such enabled in your BIOS, which will save a few of seconds.

I can suggest that you go into device manager and make sure there are no yellow exclamation marks next to any hardware and that all is working OK. Then, if you are using anything hooked up to the USB headers, disconnect it and see if that helps. Windows will scan and attempt to identify anything connected on the USB bus and if it doesn't recognize it, it will "hang" for a while until it ignores it and moves on with the boot process.

Luis did you flash your mother board yet and does your M/B recognized your CPU ? I had the same slow boot problem until I flashed my M/B so it could recognize my Opteron 170. During boot up when the lan party symbol comes up hit Tab key on your keyboard and see what it list for your CPU. If it say's Athlon Family Processor or anything other then Opteron 165 you need to flash your BIOS to the latest version for your M/B. This may or may not help but it did in my situation for slow boot.

Sun: Yes it recongnizes the CPU... but i installed the CPUZ and it has 2 cpu´s , i think i have to flash it anyway becouse the dual core ... i´m i right?

JesterOnYEr6: I did try to install raid, but i think i must have 2 HDD to do it. But in this moment it´s only one in NTFS.

fizzbang: I did record the time, 1m30s.

Flintstone: thks , You might be right, i tried to install a 24bits sound board (Live 5! in the PCI slot and i didn´t recongnize at anytime... i did check the device manager and it has some yellow "?" in the PCI... but i tried with the MB drivers and didn´t resolve.

I'm setting up a DFI mobo right now for the first time (nf4 Ultra-D) and it hasn't been easy. I'm a veteran builder but the DFI is on another level. Some reading and searching on DFI-Street will get you up and running.